Erasing files from a disk does not completely remove the data that they contain. Erasure leaves remnants that may still be accessible using specialized tools. In this video, Mike Chapple explains how you can use data sanitization tools to completely remov
- Erasing files from a disk…does not completely remove the data that they contain.…Erasure leaves remnants that may still be accessible…using specialized tools.…Data sanitization tools correct this problem…by completely removing data from devices,…making them suitable for disposal or reuse.…Let's briefly talk about the structure of file systems.…When you write a file to a hard drive,…the operating system may store pieces of the file…in different physical locations on the drive.…
These locations are a sign based upon what space…is available on the disk at any given time.…There isn't a special place set aside for different folders.…The operating system then needs some way…to put all of those pieces back together…and present your data back to you in its original form.…The operating system does this…by maintaining file system information,…known as metadata, that includes details…about the name of a file, its creation date,…access permissions, and, most importantly,…the location of that file's data on the disk.…
In Linux-based operating systems, this information…
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- IP addresses
- Routers, switches, and bridges
- VPNs and VPN concentrators
- Network intrusion detection and prevention
- Managing secure networks
- Tuning and configuring SIEMs
- Troubleshooting digital certificates
- Personnel, host, and mobile device security
- Mobile device management and tracking
- Securing common protocols
Skill Level Beginner
1. TCP/IP Suite
2. Network Security Devices
3. Managing Secure Networks
4. Wireless Networking
5. Security and Monitoring Technologies
6. Security Assessment Tools
7. Security Troubleshooting
8. Personnel Security
9. Host Security
10. Mobile Device Security
11. Securing Protocols
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